Bench vise



Apr. 24, 1923. 1,452,847

J. A. QUINLAN BENGH VISE Filed $9512. 9, 1922 'fi l/ llllllIIIIIIIIIIIIIIID V and'I do hereby declare the following, when taken inconnection with the accompany ng Patented Apr. 24, 1923.

TED

PATEN OFFICE.

JAMES A. QUINLAN, OF' SOU'IHINGTON, CONNECTICUT, ASSIGNOB TO THE PECK,STOW & WILCOX COMPANY, OF SOUTHINGTON,CONNECTICUT, ACORPORATION.

I ,BENCH vIsE,

T 0 all whom it may co /teem:

Southington, in the county ofHartford and State of Connecticut,haveinvented anew and useful Improvement in Bench Vises;

drawings and the characters of reference marked thereon, to be a full,clear, and exact description of the same, and whlchsaid drawingsconstitute part of this application,

ing-screw of the vise.

and represent, in

Fig. l a view in vertical centralsection of a bench-vise constructed inaccordance with my invention.

Fig. 2 a broken View thereof in vertical transverse section on the line2-2 of Fig.1. Fig. 3 a view thereof in horizontal section on the line3-3 of Fig. 1.

Fig. 4 a detached view in rear elevation of my improved nut whichreceivesthe operat- Fig. 5 a view thereof in side elevation.

Fig. 6 a plan view thereof.

My invention relates to an improvement in bench-Vises, the object being'to produce,

at a reduced cost for manufacture, a simple and reliable viseconstructed with particular reference to improved means for locking thenut of the operating-screw in place in the frame without the employmentof a driven pin, which is liable to work loose and the use of whichnecessitates the coring of the frame of the vise.

With these ends in view, my invention consists in a bench-vise providedwith a transversely-arranged locking-pin mounted in the vise-frame inposition to be engaged by the rearend of the operating-nut of the vise.My invention further consists in a bench-vise having its operating-nutprovided at its rear end with a transverse slot and flexible finger forthe reception and retention of a transverse locking-pin, the ends ofwhich are engaged with the frame of the vise, whereby the nut is heldagainst displacement therein. My invention further consists in certaindetails of construction as will be hereinafter described andparticularly pointed out in the claims.

In carrying out my invention, as herein shown, it is applied to astandard benchvise having a sliding jaw 10, mounting an operating-screw11, furnished at its outer Application file d septeinber 9, 1922. SerialNo. 587,994,

end with a sliding, bar-like operating-lever 12, provided at its endswith retaining knobs. The said sliding jaw 10 coacts with a fixedj aw13,formed integral with the upper portion are: vise-frame 14, the lower endof which is furnished with the usual clamping-screw 15 having anoperatinglever 16. The sliding jaw 10, is formed as usual with ahorizontal, chambered supporting-arm 17, rectangular in cross-sectionand fitting into andsliding in a rectangular bearing-opening 18 formedin the vise-frame 14 at'a point directly below the fixed jaw 13 thereof,The operating-screw 11, aforesaid, is threaded intoa nut 19, bypreference made of malleable iron and formed at its lower end withadove-tail rib 2O fitting into a dove-tail groove 21 formed in thebottom wall of the rectangular opening 18 aforesaid and paralleltherewith. f

Coming nowto my present invention, it consists, as shown, in theemployment of a transversely-arranged locking-pin 22, the ends of whichare entered into notches 23 located 1 directly opposite each other andleading out of the side walls of the groove 21, and So positioned thatthe/middle portion of the pin will engagewith an abutment 24 at the rearend of'the nut when the forward end 25 thereof is engaged with theforward wall 26 of the groove 21, though it is not designed that the nutshall be rigidly held but only prevented from substantial endwise andsidewise play. By preference and as herein shown, the rear end of thenut is formed with a flexible pin-retaining finger 27 which, when thepin has been placed in position with its ends entered into the notches23, is bent forwardly over upon the same, as shown at 28 in Fig. 1, forpreventing its accidental displacement.

In assembling the device, it is only necessary to insert the dove-tailrib 20 of the nut 19 into the rear end of the dove-tail groove 21, andslide the nut forward therein until the forward end of its rib 25 abutsagainst the vertical forward wall 26 thereof. When the nut is thuspositioned, the pin 22 is dropped into the notches 23, at which time itsmiddle portion engages with the abutment 24 at the rear end of the nut.The flexible finger 27 of the nut is now bent forward over the pin, asshown in Fig. 1, whereby the ends of the pin are prevented from escapingfrom the notches 23, in case of the removal of the sliding jaw and itsarm 17 from the vise-frame 14, it being obvious that when the arm 17 isin place in the opening 18, the lower face of the said arm will closethe upper ends of the notches 23, over which the arm rides, as clearlyshown in Fig. 2. As thus made, the rear end of the nut is formed with atransverse slot 29 for the reception of the pin 22,-but this is notessential, as the finger 27, produced by the said slot, might bedispensed with.

I claim:

1. In a bench-vise, the combination with a frame having a nut-receivinggroove, the side-walls of which are formed with upwardly-openingnotches, of a fixed jaw, a movable jaw, an operating-screw for thelatter, a nut entered into the said groove and receiving the said screw,and a transverselyarranged loo-kingpin positioned in the said notchesfor engagement with the rear end of the nut, to hold the same againstendwise displacement.

2. In a bench-vise, the combination with a frame having a. nut-receivinggroove, the side-walls of which are formed with notches, of a fixed jaw,a movable jaw, an operatingscrew for the latter, a nut entered into thesaid groove, receiving the said screw, and formed at its rear end with atransverse slot, and a locking-pin entered into the said slot andnotches, whereby the nut is held against endwise displacement.

3. A bench-vise having its frame formed with a nut-receiving groove andwith oppositely-located retaining-notches leading out of the side-wallsthereof, a fixed jaw, a movable jaw, an operating-screw for the latter,a nut located in the said groove, receiving the said screw, and having atransverse slot, and a transversely-arranged pin having its middleportion located in the said slot in the nut and its ends entered intothe said notches.

4. A bench-vise having its frame formed Witha nut-receiving groove, theside-walls of which are formed with notches, a fixed jaw, a movable jaw,an operating-screw, a nut located in the said groove, receiving the saidscrew, and formed at its rear end with a transverse slot and a flexiblefinger, and a locking-pin set into the said slot and held in place bythe said finger and by the entrance of its ends into the said notches,whereby the said nut is held against endwise displacement.

5, A bench-vise having its frame formed with a nut-receivinggroove andwith op positely-located notches leading out of the sidewalls thereof, afixed jaw, a movable jaw, an operating-screw, a nut located in the saidgroove, receiving the said screw, and formed at its rear end with atransverse slot and a flexible finger, and a'locking-pin located in thesaid slot, entered at its ends into the said notches and secured inplace by the said finger, which is bent over upon it.

Intestimony whereof, I have signed this specification in the presence oftwo subscrib ing witnesses.

I JAMES- A. QUINLAN.

Witnesses GEORGE C. LILLEY, L, P. BLO'I.

